Expert

_Duck_Dot_Dot_Happy

南方有嘉木，北方有相思。 嘉木风可摧，相思不可断。
1090 problems
solved for all time
1075 problems
solved for the last year
75 problems
solved for the last month
18 days
in a row max.
18 days
in a row for the last year
6 days
in a row for the last month